2010-2020年全国草地植被覆盖度数据
收藏国家林业和草原科学数据中心2021-02-24 更新2024-10-05 收录
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https://www.forestdata.cn/dataDetail.html?id=CSTR:17575.11.0120220224009.030001.V1
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资源简介：
该数据集是栅格型数据，采用像元二分模型计算，数据源为MOD13A2数据，时间分辨率16 d，空间分辨率1 km，通过最大值合成方法得到2010-2020年逐年NDVI数据值，模型假设陆地像元仅包括裸土或无植被覆盖区域以及完全植被覆盖区两种类型，选取1%置信度NDVI的上下阈值分别代表NDVImax和NDVImin，通过提取全球30 m地表覆盖数据（GlobeLand30）草地数据裁剪而成。
This dataset is raster data calculated using the pixel dichotomy model. The data source is MOD13A2 products, with a temporal resolution of 16 days and a spatial resolution of 1 km. Annual NDVI datasets from 2010 to 2020 were generated via the maximum value composite (MVC) method. The model assumes that terrestrial pixels are categorized into only two types: bare soil or non-vegetated areas, and fully vegetated areas. The upper and lower NDVI thresholds at the 1% confidence level were selected to represent NDVImax and NDVImin respectively. The dataset was obtained by cropping with the grassland layer extracted from the Global 30 m Land Cover Dataset (GlobeLand30).
提供机构：
国家林业和草原科学数据中心
创建时间：
2021-02-24
